My initial reaction is that it might be a little too sharp. There's a definite halo around the baby and the eyes look a bit pixelated. The catchlights are a bit big (but that's not a huge 'problem' if it is one at all). You might want to clone/heal out the red spots on the chin, they're a little distracting.

Really cute idea. I agree with what was said above, I think the chest is too close to the backdrop. I'm not sure I would've chosen blue for the backdrop color either, but that is just an opinion. Nice job otherwise!